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  1. Teiid
  2. TEIID-5330

FIRST_VALUE/LAST_VALUE/LEAD/LAG functions always try to return integer

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      Description

      The FIRST_VALUE/LAST_VALUE/LEAD/LAG functions always try to return integer, no matter what the type of the column is.

      If integer can be cast to the target type, the query will successfully return, but the return type will be integer instead of the expected one. If integer cannot be cast to the requested type, the query will fail.

      For example, when running this against a CSV source and a string column:

      SELECT FIRST_VALUE(stringkey) OVER (ORDER BY stringkey) FROM BQT1.smallA
      

      This fails with:

      14:54:49,328 ERROR [org.teiid.TRANSPORT] (New I/O worker #2) TEIID40113 Unhandled exception, aborting operation: org.teiid.transport.ObjectEncoder$FailedWriteException: org.teiid.core.TeiidRuntimeException: TEIID20001 The modeled datatype integer for column 0 doesn't match the runtime type "java.lang.String". Please ensure that the column's modeled datatype matches the expected data.
      	at org.teiid.transport.ObjectEncoder.handleDownstream(ObjectEncoder.java:136) [teiid-runtime-8.12.13.6_4-redhat-64-1.jar:8.12.13.6_4-redhat-64-1]
      	at org.jboss.netty.channel.Channels.write(Channels.java:704) [netty-3.6.10.Final-redhat-1.jar:3.6.10.Final-redhat-1]
      	at org.jboss.netty.channel.Channels.write(Channels.java:671) [netty-3.6.10.Final-redhat-1.jar:3.6.10.Final-redhat-1]
      	at org.jboss.netty.channel.AbstractChannel.write(AbstractChannel.java:248) [netty-3.6.10.Final-redhat-1.jar:3.6.10.Final-redhat-1]
      	at org.teiid.transport.SSLAwareChannelHandler$ObjectChannelImpl.write(SSLAwareChannelHandler.java:94) [teiid-runtime-8.12.13.6_4-redhat-64-1.jar:8.12.13.6_4-redhat-64-1]
      	at org.teiid.transport.SocketClientInstance.send(SocketClientInstance.java:94) [teiid-runtime-8.12.13.6_4-redhat-64-1.jar:8.12.13.6_4-redhat-64-1]
      	at org.teiid.transport.ServerWorkItem.sendResult(ServerWorkItem.java:135) [teiid-runtime-8.12.13.6_4-redhat-64-1.jar:8.12.13.6_4-redhat-64-1]
      	at org.teiid.transport.ServerWorkItem$1.onCompletion(ServerWorkItem.java:105) [teiid-runtime-8.12.13.6_4-redhat-64-1.jar:8.12.13.6_4-redhat-64-1]
      	at org.teiid.client.util.ResultsFuture.done(ResultsFuture.java:135) [teiid-client-8.12.13.6_4-redhat-64-1.jar:8.12.13.6_4-redhat-64-1]
      	at org.teiid.client.util.ResultsFuture.access$200(ResultsFuture.java:40) [teiid-client-8.12.13.6_4-redhat-64-1.jar:8.12.13.6_4-redhat-64-1]
      	at org.teiid.client.util.ResultsFuture$1.receiveResults(ResultsFuture.java:79) [teiid-client-8.12.13.6_4-redhat-64-1.jar:8.12.13.6_4-redhat-64-1]
      	at org.teiid.dqp.internal.process.RequestWorkItem.sendResultsIfNeeded(RequestWorkItem.java:996) [teiid-engine-8.12.13.6_4-redhat-64-1.jar:8.12.13.6_4-redhat-64-1]
      	at org.teiid.dqp.internal.process.RequestWorkItem$1.flushBatchDirect(RequestWorkItem.java:676) [teiid-engine-8.12.13.6_4-redhat-64-1.jar:8.12.13.6_4-redhat-64-1]
      	at org.teiid.query.processor.BatchCollector.flushBatch(BatchCollector.java:223) [teiid-engine-8.12.13.6_4-redhat-64-1.jar:8.12.13.6_4-redhat-64-1]
      	at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:194) [teiid-engine-8.12.13.6_4-redhat-64-1.jar:8.12.13.6_4-redhat-64-1]
      	at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:146) [teiid-engine-8.12.13.6_4-redhat-64-1.jar:8.12.13.6_4-redhat-64-1]
      	at org.teiid.dqp.internal.process.RequestWorkItem.processMore(RequestWorkItem.java:472) [teiid-engine-8.12.13.6_4-redhat-64-1.jar:8.12.13.6_4-redhat-64-1]
      	at org.teiid.dqp.internal.process.RequestWorkItem.process(RequestWorkItem.java:348) [teiid-engine-8.12.13.6_4-redhat-64-1.jar:8.12.13.6_4-redhat-64-1]
      	at org.teiid.dqp.internal.process.AbstractWorkItem.run(AbstractWorkItem.java:51) [teiid-engine-8.12.13.6_4-redhat-64-1.jar:8.12.13.6_4-redhat-64-1]
      	at org.teiid.dqp.internal.process.RequestWorkItem.run(RequestWorkItem.java:274) [teiid-engine-8.12.13.6_4-redhat-64-1.jar:8.12.13.6_4-redhat-64-1]
      	at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:284) [teiid-engine-8.12.13.6_4-redhat-64-1.jar:8.12.13.6_4-redhat-64-1]
      	at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:119) [teiid-engine-8.12.13.6_4-redhat-64-1.jar:8.12.13.6_4-redhat-64-1]
      	at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:210) [teiid-engine-8.12.13.6_4-redhat-64-1.jar:8.12.13.6_4-redhat-64-1]
      	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [rt.jar:1.8.0_151]
      	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [rt.jar:1.8.0_151]
      	at java.lang.Thread.run(Thread.java:748) [rt.jar:1.8.0_151]
      Caused by: org.teiid.core.TeiidRuntimeException: TEIID20001 The modeled datatype integer for column 0 doesn't match the runtime type "java.lang.String". Please ensure that the column's modeled datatype matches the expected data.
      	at org.teiid.client.BatchSerializer.writeBatch(BatchSerializer.java:878) [teiid-client-8.12.13.6_4-redhat-64-1.jar:8.12.13.6_4-redhat-64-1]
      	at org.teiid.client.ResultsMessage.writeExternal(ResultsMessage.java:319) [teiid-client-8.12.13.6_4-redhat-64-1.jar:8.12.13.6_4-redhat-64-1]
      	at java.io.ObjectOutputStream.writeExternalData(ObjectOutputStream.java:1459) [rt.jar:1.8.0_151]
      	at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1430) [rt.jar:1.8.0_151]
      	at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) [rt.jar:1.8.0_151]
      	at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348) [rt.jar:1.8.0_151]
      	at org.teiid.net.socket.Message.writeExternal(Message.java:61) [teiid-client-8.12.13.6_4-redhat-64-1.jar:8.12.13.6_4-redhat-64-1]
      	at java.io.ObjectOutputStream.writeExternalData(ObjectOutputStream.java:1459) [rt.jar:1.8.0_151]
      	at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1430) [rt.jar:1.8.0_151]
      	at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) [rt.jar:1.8.0_151]
      	at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348) [rt.jar:1.8.0_151]
      	at org.teiid.transport.ObjectEncoder.handleDownstream(ObjectEncoder.java:131) [teiid-runtime-8.12.13.6_4-redhat-64-1.jar:8.12.13.6_4-redhat-64-1]
      	... 25 more
      Caused by: java.lang.ClassCastException: java.lang.String cannot be cast to java.lang.Integer
      	at org.teiid.client.BatchSerializer$IntColumnSerializer.writeObject(BatchSerializer.java:563) [teiid-client-8.12.13.6_4-redhat-64-1.jar:8.12.13.6_4-redhat-64-1]
      	at org.teiid.client.BatchSerializer$ColumnSerializer.writeColumn(BatchSerializer.java:534) [teiid-client-8.12.13.6_4-redhat-64-1.jar:8.12.13.6_4-redhat-64-1]
      	at org.teiid.client.BatchSerializer.writeBatch(BatchSerializer.java:867) [teiid-client-8.12.13.6_4-redhat-64-1.jar:8.12.13.6_4-redhat-64-1]
      	... 36 more
      

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              • Assignee:
                shawkins Steven Hawkins
                Reporter:
                jmartisk Jan Martiska
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                • Created:
                  Updated:
                  Resolved: